Results 11 to 20 of about 1,566,030 (299)

Winter Bird Assemblages in Rural and Urban Environments: A National Survey [PDF]

, 2015
Urban development has a marked effect on the ecological and behavioural traits of many living organisms, including birds. In this paper, we analysed differences in the numbers of wintering birds between rural and urban areas in Poland. We also analysed
A Cannon, A Chao, A Chao, A Goławski, Andrzej Wuczyński, AP Møller, Artur Goławski, B Stephan, BA Walther, C Barbraud, CJF Ter Braak, Claudia Mettke-Hofmann, D Miller, Dariusz Wysocki, E Bezzel, E Matthysen, E Pulliainen, F Rebele, J Jokimäki, J Jokimäki, J Jokimäki, J Jokimäki, J Lepš, J Partecke, J Suhonen, JA Royle, Jacek J. Nowakowski, JM Anderies, JM Marzluff, KJ Gaston, KP Burnham, Leszek Duduś, Leszek Jerzak, LV García, M Alberti, M Ciach, Michał Polakowski, MO Hill, MO Hill, OL Gilbert, P Clergeau, P Clergeau, P Clergeau, P Domonkos, P Skórka, P Tryjanowski, Paweł Czechowski, PF Donald, Piotr Indykiewicz, Piotr Kawa, Piotr Skórka, Piotr Tryjanowski, Piotr Zduniak, Przemysław Kunysz, RA Fuller, RA Fuller, Rafał Martyka, Stanisław Czyż, T Brauze, TD Mazgajski, Tim H. Sparks, Tomasz Brauze, Tomasz Hetmański, Tomasz Janiszewski, Waldemar Biaduń, WL Kendall, WR Turner, Y Benjamini, Ł Myczko, Łukasz Myczko   +69 more
core   +14 more sources

Species abundance distributions should underpin ordinal cover‐abundance transformations [PDF]

Applied Vegetation Science, 2019
Abstract Questions The cover and abundance of individual plant species have been recorded on ordinal scales for millions of plots world‐wide. Ordinal cover data often need to be transformed to a quantitative form (0%–100%), especially when scrutinising summed cover of multiple species ...
McNellie, Megan J, Dorrough, Josh, Oliver, Ian   +2 more
openaire   +1 more source

Waterbird community changes in the Wilderness Lakes, South Africa (Part 1 of 3): Herbivores and omnivores

Koedoe: African Protected Area Conservation and Science, 2023
Global and regional degradation and loss of aquatic systems can negatively affect wetland-dependent waterbirds. The Wilderness Lakes Complex in South Africa, which incorporates the Wilderness Ramsar site, supports populations of 68 waterbird species ...
Ian A. Russell
doaj   +1 more source

Environmental and ichthyofaunistic characteristics of Amazonian streams with and without fish farm [PDF]

Brazilian Journal of Biology, 2023
The environmental impacts caused by fish farming can lead to changes in aquatic ecosystems, especially in fish communities. In this study, we investigated possible changes in water quality, in the number of species and individuals of the same species ...
S. M. Santos, A. T. Oliveira, P. H. R. Aride, A. R. S. Liebl, F. P. Mendonça, J. Zuanon, J. Pantoja-Lima   +6 more
doaj   +1 more source

Clonal growth and plant species abundance [PDF]

Annals of Botany, 2014
Both regional and local plant abundances are driven by species' dispersal capacities and their abilities to exploit new habitats and persist there. These processes are affected by clonal growth, which is difficult to evaluate and compare across large numbers of species.
Tomáš, Herben, Zuzana, Nováková, Jitka, Klimešová   +2 more
openaire   +2 more sources

Introduced birds in urban remnant vegetation : does remnant size really matter? [PDF]

, 2006
Introduced birds are a pervasive and dominant element of urban ecosystems. We examined the richness and relative abundance of introduced bird species in small (1–5 ha) medium (6–15 ha) and large (>15 ha) remnants of native vegetation ...
Anderson D. R., Braysher M., Burnham K. P., Catterall C. P., Chace J. F., Clarke K. R., Fox M. D., Green R. J., Hart Q., Ihaka R., Johnston M. J., Long J. L., Martin W. K., Morgan G., Pell A. S., Van Vuren D., Wood K. A.   +16 more
core   +2 more sources

Taking species abundance distributions beyond individuals [PDF]

Ecology Letters, 2009
AbstractThe species abundance distribution (SAD) is one of the few universal patterns in ecology. Research on this fundamental distribution has primarily focused on the study of numerical counts, irrespective of the traits of individuals. Here we show that considering a set of Generalized Species Abundance Distributions (GSADs) encompassing several ...
Morlon, H., White, Ethan P., Etienne, R. S., Green, J. L., Ostling, A., Alonso, D., Enquist, B. J., He, F., Hurlbert, A. H., Magurran, A. E., Maurer, B. A., McGill, B. J., Olff, H., Storch, D., Zillio, T.   +14 more
openaire   +5 more sources

How selection structures species abundance distributions [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2012
How do species divide resources to produce the characteristic species abundance distributions seen in nature? One way to resolve this problem is to examine how the biomass (or capacity) of the spatial guilds that combine to produce an abundance distribution is allocated among species.
Magurran, Anne E., Henderson, Peter A.
openaire   +4 more sources

The influence of land drainage on the abundance and species composition of small mammals

Theriologia Ukrainica, 2022
The article is devoted to the research on the abundance and species composition of small mammals in the territory of central Ukraine (Cherkasy, Poltava, and Kyiv oblasts) affected by land development by drainage.
Andriy Vyskushenko, Dmytro Vyskushenko, Tamara Andriichuk   +2 more
doaj   +1 more source

Long-term species richness-abundance dynamics in relation to species departures and arrivals in wintering urban bird assemblages [PDF]

, 2019
Temporal dynamics of local assemblages depend on the species richness and the total abundance of individuals as well as local departure and arrival rates of species. We used urban bird survey data collected from the same 31 study plots and methods during
Jokimaki, Jukka, Suhonen, Jukka
core   +2 more sources